Abstract
Differential cross sections for ground-state neutrons from the reaction have been measured at by a neutron spectrometer. A stripping peak implying is observed. The excitation function of the ground-state neutrons has been measured from Mev to Mev. A number of resonances were found corresponding to virtual states of . The angular distributions of neutrons associated with the 5.28-, 5.31-Mev doublet (unresolved) and 6.33-Mev levels of were measured by photographic emulsion technique. A stripping peak characteristic of corresponds to the unresolved doublet, and to the 6.33-Mev state. The excitation function for all neutrons from was measured both by "slow" and "fast" neutron counters. Several possible slow-neutron thresholds were found corresponding to excited states of . The sensitivity of the slow-neutron threshold technique was checked by the . Accurate values of these thresholds are reported.
- Received 25 January 1961
DOI:https://doi.org/10.1103/PhysRev.123.1316
©1961 American Physical Society